Sodium triacetoxyborohydride → Benzyl-[1-(5-bromo-pyridin-2-yl)-2,2,2-trifluoro-ethyl]-amine

反応式

[CH2:1](/[N:8]=[C:9](\[C:14]1[CH:19]=[CH:18][C:17]([Br:20])=[CH:16][N:15]=1)/[C:10]([F:13])([F:12])[F:11])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>CO.O>[CH2:1]([NH:8][CH:9]([C:14]1[CH:19]=[CH:18][C:17]([Br:20])=[CH:16][N:15]=1)[C:10]([F:13])([F:11])[F:12])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

実験手順

To a stirred solution of Benzyl-[1-(5-bromo-pyridin-2-yl)-2,2,2-trifluoro-eth-(E)-ylidene]-amine (0.45 g, 1.31 mmol) in methanol (20 mL) is added sodium triacetoxy borohydride (0.55 g, 2.62 mmol) at 0° C. then stir at room temperature for 3 hours. Reaction mixture is diluted with water and extracted with ethyl acetate. Organic layer is dried over sodium sulphate, solvent is evaporated in vacuo and purified by column chromatography eluting in 10% ethyl acetate in hexane to afford the title compound (0.15 g). 1H NMR (400 MHz, DMSO-d6) δ: 3.57-3.61 (m, 1H), 3.64-3.73 (m, 2H), 4.50 (m, 1H), 7.22-7.25 (m, 1H), 7.28-7.29 (m, 4H), 7.73 (d, J=8.2 Hz, 1H), 7.91-7.93 (dd, J1=8.2 Hz, J2=2.24 Hz, 1H), 8.48 (d, J=2.08 Hz, 1H). LC-MS (m/z): [M+H]=347.0.